Digital Intraoral Impression Methods: an Update on Accuracy
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DENTAL RESTORATIVE MATERIALS (M ÖZCAN & P CESAR, SECTION EDITOR)
Digital Intraoral Impression Methods: an Update on Accuracy Mercedes Robles-Medina 1 & Marta Romeo-Rubio 1 & Maria Paz Salido 1 & Guillermo Pradíes 1 Accepted: 18 June 2020 # Springer Nature Switzerland AG 2020
Abstract Purpose of Review The increased implementation of intraoral scanners (IOSs) in different dental fields has created the need for IOS’s accuracy assessment by the scientific community. Hence, the aim of this literature review is to provide the current ``state of the art´´ regarding the accuracy of optical impression systems. Recent Findings The reported IOS’s accuracy in dentistry is highly variable and controversial among studies. Researches performed either in vitro or in vivo considering digital intraoral impressions a valuable alternative to conventional impression techniques; however, the clinical situation has to be taken into consideration. Most studies coincide that IOSs show highly accurate results when partial-arch scans are performed, whereas in cross-arch scans especially in implant dentistry, the choice of a complete digital workflow sometimes has to be avoided if the clinical situation is highly challenging. Summary New versions of IOSs guarantee scan accuracy in most clinical situations. However, blood and saliva in prepared teeth impressions continue affecting the reading of the surfaces. On the other hand, multiple implant scenarios in edentulous mandibular arches still result in accuracy limitations. Keywords Accuracy . CAD-CAM . Digital impression . Intraoral scanner . Precision . Trueness
Introduction The fourth Industrial Revolution, also known as Digital Revolution, has transformed not only the overall global industry but Dental Industry and how dentists perform their profession. Digital dentistry can be considered as novel workflow supported by using different digital devices that lead to a more predictable dental practice. At present, a wide range of digital tools are available [1], such as digital radiology, especially cone beam computed tomography (CBCT), digital photography, intraoral and extraoral dental scanners, facial scanners, mandibular tracking motion systems, specific computer-aided design (CAD) software, and subtractive and additive manufacturing equipment (CAM). In addition to that, computerized piloted surgery also called active navigation systems in real time and the improvement of esthetic CAD/CAM This article is part of the Topical Collection on Dental Restorative Materials * Guillermo Pradíes [email protected] 1
Department of Conservative Dentistry and Buccofacial Prostheses, Faculty of Dentistry, University Complutense of Madrid, Plaza Ramón y Cajal, S/N, Ciudad Universitaria, 28040 Madrid, Spain
materials are closing the full digital workflow. Treatment planning based in the integration of all these different digital records has achieved that virtual patient replica in some scenarios is not anymore a utopia [2•]. The purpose of this narrative review is to provide the clinician with an update
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